Equation Geek Watch

This smart and stylish watch features the equivalent notation of each number.

$68.00

Geeks: We've Got Your Number

Regular numbers? Those are for amateurs. Bring your inner genius out for all to envy with a smart and stylish watch that features the equivalent notation of each number.

For nascent mathematicians and victims of the occasional memory lapse, a cheat sheet is included with each watch.:
1: i is equal to the square root of -1, so i^2= -1. The absolute value of -1 is 1.
2: This represents 2 in binary code.
3: The cube root of 27
4: 11 base 3, which represents 4 in the ternary system
5: Log(20x)=2 is equivalent to 20x=10^2 or 20x=100, where x=5.
6: Euler's product formula: phi(p^k)=(p^k)(1-(1/p)), where (p^k)=9
7: This is a binomial coefficient, so with the formula n/k = (n!)/((k!)(n-k)!), n/k=7.
8: This is a natural logarithm where ln(e^x)=x, so ln(e^8)=8.
9: This summation is equal to 3(1)+3(2)=3+6=9.
10: Since clocks "wrap around" every 12 hours, the hour number starts over after it reaches 12. This is arithmetic modulo 12. 10mod12 is 10:00, and 16mod12 would be 4:00, for example.
11: B'L is Legendre's constant, which is equal to 1, so this equation becomes the square root of 121, which is 11.
12: Hexadecimal representation of 12

Made in China. Japanese movement. 3 ATM water and splash resistant.



For more geeky timepieces, check out the Equation Geek Clock .

Exclusive
Made from
stainless steel, steel, Glass
Measurements
Face 1.65" dia., case .315" H; Adjustable band 9" L, 20mm W
Item ID
22195

Still haven't found the details you're looking for? Check out our Product Q&A!

Most of our items are in stock and will ship quickly. Orders for in-stock items placed before 5pm ET Monday through Friday, excluding Federal holidays, will ship:
Economy shipping:
within 8 days, arriving no later than the 9th business day after the order was placed.
Standard shipping:
within 4 days, arriving 5 business days after the order was placed.
Preferred shipping:
within 2 days, arriving 3 business days after the order was placed.
Expedited shipping:
within 1 day, arriving 2 business days after the order was placed.
Express shipping:
will ship the same day and arrive 1 business day later.

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REVIEW SNAPSHOT®

by PowerReviews
UncommonGoodsEquation Geek Watch
 
4.4

(based on 91 reviews)

Ratings Distribution

  • 5 Stars

     

    (53)

  • 4 Stars

     

    (29)

  • 3 Stars

     

    (5)

  • 2 Stars

     

    (3)

  • 1 Stars

     

    (1)

97%

of respondents would recommend this to a friend.

Pros

  • Stylish (68)
  • Good quality (42)
  • Easy to read (31)
  • Reliable (19)
  • Accurate (18)

Cons

  • Difficult to read (3)
  • Heavy / bulky (3)

Best Uses

  • Everyday (46)
  • Daily use (17)
  • Formal (12)
  • Travel (11)
  • Work (9)
    • Reviewer Profile:
    • Practical (37), Modern (28), Stylish (28), Classic style (18), Athletic (13)
    • Was this a gift?:
    • Yes (129), No (9)
    • For what occasion did you purchase this product?:
    • Christmas or hanukkah (35), Other (20), Birthday (18)

Reviewed by 91 customers

Displaying reviews 1-10

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5.0

Very cool, unique watch that is mathematically correct!

By 

from Chicago

Verified Buyer

Pros

  • Accurate
  • Comfortable
  • Stylish
  • Water Resistant

Cons

    Best Uses

      Comments about UncommonGoods Equation Geek Watch:

      Great watch. Very well made, and a great gift idea.

      • Was this a gift?:
      • Yes
       
      4.0

      A Geek's Delight

      By 

      from Utah

      About Me Practical

      Verified Buyer

      Pros

      • Stylish

      Cons

        Best Uses

        • Daily Use
        • Formal Events
        • Work

        Comments about UncommonGoods Equation Geek Watch:

        I cannot speak to the quality of this product myself since it was sent many states away. However, the recipient loved it.

        • Was this a gift?:
        • Yes
         
        5.0

        Math Equations

        By 

        from Oklahoma

        About Me Athletic, High End Shopper, Practical

        Verified Buyer

        Pros

        • Accurate

        Cons

          Best Uses

          • Travel

          Comments about UncommonGoods Equation Geek Watch:

          The watch arouses human interaction. Most people are curious to understand the significance of the equations.

          • Was this a gift?:
          • No
           
          5.0

          Perfect Gift

          By 

          from Victor, NY

          About Me Practical

          Verified Buyer

          Pros

          • Accurate
          • Comfortable
          • Quality Construction
          • Stylish

          Cons

            Best Uses

            • Daily Use
            • Formal Events
            • Travel
            • Work

            Comments about UncommonGoods Equation Geek Watch:

            This watch was perfect for my fiance, he wears it almost every day.

            • Was this a gift?:
            • Yes
             
            5.0

            #sweepstakes

            By 

            from Boston

            About Me Classic, Practical

            Verified Buyer

            Pros

            • Comfortable
            • Quality Construction
            • Stylish

            Cons

              Best Uses

              • Daily Use

              Comments about UncommonGoods Equation Geek Watch:

              My son (college math major) loved his Christmas gift. He enjoyed the variety of math equations on the watch and showed it to many friends and fellow math students.

              • Was this a gift?:
              • Yes
               
              4.0

              My husband and his son adore this watch!

              By 

              from Mundelein, IL

              Verified Buyer

              Pros

              • Accurate
              • Comfortable
              • Quality Construction
              • Water Resistant

              Cons

              • Strap Wears Easily

              Best Uses

              • Daily Use
              • Impress your friends!

              Comments about UncommonGoods Equation Geek Watch:

              We switched out the strap for a nicer leather one, but the watch itself is a joy, and always contributes to the conversation!

              • Was this a gift?:
              • Yes
               
              5.0

              So fun.

              By 

              from Los Angeles CA

              About Me Athletic, Classic, Modern

              Verified Buyer

              Pros

              • Comfortable
              • Quality Construction
              • Stylish

              Cons

                Best Uses

                • Daily Use

                Comments about UncommonGoods Equation Geek Watch:

                Great for daily use. Always get compliments.

                • Was this a gift?:
                • No, No
                 
                4.0

                Much better quality than the competitors

                By 

                from Jacksboro, TN

                About Me Athletic, Modern, Stylish

                Verified Buyer

                Pros

                • Quality Construction
                • Stylish

                Cons

                • Excess strap on small wrists

                Best Uses

                • Daily Use
                • Travel
                • Work

                Comments about UncommonGoods Equation Geek Watch:

                My son wanted an equation watch that he found on a mass-market internet retailer's site. The reviews weren't that great, and I noticed it was plastic. Thankfully, I found this all-metal watch on UG and I couldn't be happier (and neither could he)! The metal strap is solid and looks great, and the watch itself is also metal, and looks great. Since my son has a small wrist, the excess strap flaps, so he uses a small black rubber band to keep it in place. He wouldn't need this if the strap retainer were rubber and not metal, and it's the only reason I don't give it five stars. Otherwise it's a fantastic find!

                • Was this a gift?:
                • Yes, Yes
                • For what occasion did you purchase this product?:
                • Christmas or Hanukkah
                 
                5.0

                Perfect Gift

                By 

                from Boston

                About Me Athletic, Classic, Modern, Practical, Stylish

                Verified Buyer

                Pros

                • Accurate
                • Comfortable
                • Quality Construction
                • Stylish
                • Water Resistant

                Cons

                  Best Uses

                  • Daily Use
                  • Work

                  Comments about UncommonGoods Equation Geek Watch:

                  I was actually surprised by the quality of the watch, it was much better than I expected. Very solid build, that looks great on most attires.

                  • Was this a gift?:
                  • Yes, Yes
                  • For what occasion did you purchase this product?:
                  • Christmas or Hanukkah
                   
                  2.0

                  Band straps are NOT good!

                  By 

                  from Philadelphia, PA

                  Verified Reviewer

                  Pros

                  • Quality Construction

                  Cons

                  • Strap Wears Easily

                  Best Uses

                    Comments about UncommonGoods Equation Geek Watch:

                    Initially, I loved this. My husband is a mathematician and it was for our anniversary. He loved it when I gave it to him, wore it often, and bragged to his friends about it.

                    Not long after the band straps started to unravel causing him discomfort. He kept wearing it (probably to show his appreciation towards to thoughtful gift) until it caused him physical pain. It's not just sitting collecting dust because of the terrible band straps.

                    • Was this a gift?:
                    • Yes, Yes

                    Displaying reviews 1-10

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